Modular cutting insert and method of making same

Abstract

A cutting insert for use on a tool body includes a first member formed in a predetermined shape and a second member formed separate from the first member in a second predetermined shape and coupled to the first member. At least one of the first member or the second member comprise a number of cutting portions adapted to perform cutting operations on a workpiece.

What is claimed is: 
     
       1. A cutting insert for use on a tool body, the cutting insert comprising:
 a first member formed in a predetermined shape; and 
 a second member formed separate from the first member in a second predetermined shape and coupled to the first member, 
 wherein one of the first member or the second member comprise a number of cutting portions adapted to perform cutting operations on a workpiece, 
 wherein:
 the first member comprises a first mating portion, 
 the second member comprises a second mating portion in engagement with and coupled to the first mating portion, 
 at least one of the first mating portion and the second mating portion comprise a first number of recessed portions formed therein, 
 the other one of the first mating portion and the second mating portion comprises a second number of recessed portions formed therein, and 
 each recessed portion of the first number of recessed portions and each recessed portion of the second number of recessed portions are disposed in the respective mating portions in a manner such that each recessed portion of the first number of recessed portions is generally aligned with a corresponding recessed portion of the second number of recessed portions. 
 
 
     
     
       2. The cutting insert of  claim 1  wherein each recessed portion of the first number of recessed portions and each recessed portion of the second number of recessed portions form a number of sealed chambers within the cutting insert.